The number of non-negative integral solutions of `x_1+x_2+x_3+4x_4=20` is

Let y be an element of the set A={1,2,3,4,5,6,10,15,30} and x_(1) , x_(2) , x_(3) be integers such that x_(1)x_(2)x_(3)=y , then the number of positive integral solutions of x_(1)x_(2)x_(3)=y is

Find the number of non-negative integral solutions of x+y+z+wlt=20.

Find the number of non-negative integral solutions of the equation x+y+z=10.

Find the number of non-negative integer solutions of equation x+y+z+2w=20.

The number of integral solutions of (x+8)/(x+2) le 2 is

The number of positive integral solutions of x^4-y^4=3789108 is a. 0 b. 1 c. 2 d. 4

Find number of negative integral solution of equation x + y + z = - 12

Find the numbers of non-zero integral solutions of the equation |1-i|^(x) =2^(x)

Find the number of positive integral solutions satisfying the equation (x_1+x_2+x_3)(y_1+y_2)=77.

The number of solutions of the inequation |x-1| + |x+2| lt 4 is